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J. P. SNEDIKER.

SEWING MACHINE.

No. 296,637; Patented AprQS, 1884,

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JAMES F. SXEDIKER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THENATIONAL SEYVING MACHINE COMPANY, (LIMITED,) OF SAME PLACE.

SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent NO. 296,637, dated April 8,1884.

Application filed November 8, 1883. (No model.)

To all whom it may concern Be it known that I, Janns F. Snnmnnn, acitizen of the United States, and a resident of Philadelphia,Pennsylvania, have invented certain Improvements in Button-Hole Sewing-Machines, of which the following is a specification.

My invention relates to that class of buttonhole sewing-machines inwhich a clamping device is used to feed the fabric, the object of myinvention being to permit the ready application of the fabric to and itsready removal from said clamping device when the latter is used inconnection with a machine having a horn or guide-pin entering thebutton-hole and projecting above the table or bed.

In the accompanying drawings, Figure 1, Sheet 1, is a longitudinalsection of sufficient of the machine to illustrate my invention; Fig.2-, Sheet 2, a transverse section on the line 1 2; Fig. 3, a perspectiveview of the mechanism for depressing the horn; and Figs. 4, 5, 6, and 7,views of modifications.

In some button-hole sewing-niachines-the American machine, for instanceahorn or guide-pin, :6, projects above the table or bed, this hornentering the button-hole and remaining in the same while the stitchesare being formed.

When it is desired to use on a machine of this class an automaticfeeding devicesuch, forinstance, as that shown in my Patent No. 265,167,September 26, 1882-the horn interferes with the ready application of thei'abricto and its removal from the clampplatest t,forming' partof saidfeeding device. In order to remove this horn when it is desired to applyor remove the fabric, I provide said horn with a yielding support. Thus,as shown in Figs. 1 to 3, the horn is carried by alever, a, pivoted to astud, b, on the under side of the table or bed A of the machine, wherebysaid lever can be so adjusted as to cause the projection of the horn a:above the stud 3 on the bed-plate, as shown in Fig. 2, or the retractionof the horn within said stud, as shown in Fig. 4:.

The means employed for adjusting the lever may be varied in many wayswithout depart v ing from the spirit of my invention. For instance, thelong arm of the lever may project in front of the table, as shown inFig. 4, so as to be directly manipulated; but I prefer the an rangementshown in Figs. 1, 2, and 3,whereby the retraction of the horn iseffected simultaneously with the retraction of the looper usually 5 5employed in this class of machines.

In a patent, No. 261,399, granted to my assignees on the 18th day ofJuly, 1882, is described and claimed mechanism for cheating theretraction of said looper, this mechanism comprising a cam-lever, M,which acts upon a pin, 0, on a plate, B, guided on the bed A of themachine, and having a pin, (1, adapted to a groove in the cam D, whichacts upon thelooperarm F, so that by sliding the plate B the cam D ismoved longitudinally upon the drivingshait, and the looper-arm isvibrated in such a manner as to advance or retract the looper.

In the present instance the sliding plate B has short arm of abell-crank lever, G, hung to a pin on the bed A, the long arm of saidlever having a lug, h, a pin, 1', on which is adapted to an inclinedslot, m, in the long arm of the lever a, so that on moving the slide Blongi- 7 5 tudinally a transverse movement will be i1nparted to the longarm of the lever G, and the lever a will be vibrated, so as to ad- Vanceor retract the horn at. The long arm of the lever G is in the presentinstance extended g beyond the lever c,being intended for connection tothe cut-off plate described in said Pat ent So. 265,167, whereby thefeed mechanism is thrown in and out of gear. If desired, however, thelever a. may be actuated directly by 8 means of a plate, B, secured toor forming part of the plate 13, and having an inclined slot, B

for the reception of the long arm of the lever,

as shown in Fig. 5, for instance.

The horn w, in the present instance, forms go part of one arm of a shortlever, as, pivoted to the end of the lever a, the other arm of saidlever .2 being acted upon by a spring, m so that the upper end of thehorn will not move in the arc of a circle, but will always be heldagainst 5 the side of the opening 3/ in the studyand prevented fromcoming into the path of the looper k, which also works in the opening 7It is not necessary that the horn should be carried by a lever, a.

6 and 7, I have shown a modification inwhich a projection, 10, on thehorn is adapted to a rea pin, j, which is adapted to a slot, in the Forinstance, in Figs. 10o

cess in the under side of the bed-plate, and is free to slide thereinunder control of aspring, w, a sliding wedge, w acting on a projectionon the horn,and serving,when properly adjusted, to depress the horn, thespring restoring the same to its normal position on the retraction ofthe wedge. The horn 00 serves to prevent the fabric from pressing uponthe looperneedle when the latter is raised, and also aids in directingthe fabric under control of the clamp, especially during the turningmovement at the ends of the button-hole, when it serves as a pivot forthe fabric.

I claim as my invention-.

1. The combination of the sewing mechanism of a button-holesewing-machine with a horn, 00, having a yielding support, and withmechanism whereby said horn can be elevated or depressed, as set forth.

2. The combination of the sewing mechanism, the table or bed, the hornm, and thelever a, carrying said horn, as set forth.

carrying the same, and having an inclined slot,

m, the slide 13, and the bellcrank lever G, having a pin, i, adapted tothe slot m, as set forth.

5. The combination of the table or bed hav-' ing an opening, y, lever a,and the horn x,f0rming part of a lever, 00, hung to the lever a, andacted upon by a spring, 00 as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JAMES F. SNEDIKER.

Witnesses:

JOHN M. CLAYTON, HARRY SMITH.

